SSINVERTER SSI700, User Manual, Page: 31 / 148

SSI700 User Manual Operation, Display and Application Example
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The relationship between the target running frequency and the main frequency source
and auxiliary frequency source is set in P0-07, as follows:
1) Main frequency source A: The main frequency source is directly used to set the target
running frequency.
2) Auxiliary frequency source B: The auxiliary frequency source is directly used to set the
target running frequency.
3) A and B operation: There are four operation methods, namely, A+B, A-B, maximum of
A and B, and minimum of A and B.
4) Frequency switchover: A DI terminal is used to switch over between the preceding
three frequency setting channels.
The following figure shows how to set the relationship in P0-07, in which the bold line
indicates the default setting.
Figure 4-19 Relationship between the target running frequency and main and auxiliary
frequency sources
The operation between the main frequency source and the auxiliary frequency source can
be used for closed-loop speed control. For example, using the main frequency source for
setting the required frequency and the auxiliary frequency source for automatic
adjustment, in conjunction with switchover performed by the external DI terminal signal,
the required control can be implemented.